Work holder supported and clamped between vise jaws



Dec. 5, 1950 c. M. SCHMITT 2,532,952

WORK HOLDER SUPPORTED AND CLAMPED BETWEEN VISE JAWS Filed Dec. 19, 1947 Carl M. Schmi/I INVENTOR.

I6 24 18 BY M -M158,

Patented Dec. 5, 1950 WORK HOLDER SUPPORTEDAND CLAMPED BETWEEN v se JAWS Carl M. Schrnitt, Elmhurst, Ill. Application December 19, 1947, Serial No. 792,696

This invention relates to new and useful improvements in work holding devices and the primary object of the present invention is to provide a work holder insertable in a clamping vise for supporting an article at a selected inclined or tilted position so that the article may be conveniently shaped by a file or the like.

Another important object of the present invention is to provide a holder including a pair of clamping jaws which are quickly and readily spreadable for the placement of an article therebetween.

A further object of the present invention is to provide a work holding device including a pair of bearing jaws and a pivoted supporting member which may be selectively rotated to effect a desired angle of inclination of a piece of work supported between the jaws.

A still further aim of the present invention is to provide a work holder of the aforementioned character that is simple and practical in construction, strong and reliable in use, neat and attractive in appearance, small and compact in structure, relatively inexpensive to manufacture,

and otherwise well adapted for the purposes for which the same is intended.

Other objects and advantages reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming part hereof, wherein like numerals refer to like parts throughout, and in which:

Figure 1 is a fragmentary side elevational view of a clamping vise and showing the present invention applied thereto in use;

Figure 2 is a perspective view of the present work holder;

Figure 3 is a longitudinal vertical sectional view taken substantially through the center of Figure 2; and

Figure 4 is a perspective View of a slightly modified form of work engaging roller used in conjunction with the present invention.

Referring now to the drawings in detail,

wherein for the purpose of illustration there is a.

disclosed a preferred embodiment of the present invention, the numeral l0 represents the present work holding device generally. The device comprises a pair of supporting arms or substantially rectangular shanks I2 and 54 that are bifurcated at their lower ends I6 and I8 to pivotally engage end portions 20 and 22 of a connecting link 24.

The upper end of one of the supporting arms, for example arm l2, terminates in an enlarged 1 Claim. (Cl. 8138) head portion or jaw 26 having an inclined bearing face 28 that projects inwardly toward an outwardly inclined bearing face 30 of an enlarged head or jaw 32 at the upper end of the other supporting arm M. These jaws 26 and 32 are provided with outwardly projecting end portions 34 and 36 that include bearing shoulders 38 and 40 for a purpose which will later be more fully described.

The jaw 32 is preferably channeled or is provided with an opening 42 at its outer end that supports a rigid pivot pin 44 on which there is pivotally mounted a roller or disk 46 having a flat bearing surface 48 that is spaced outwardly from the bearing face 30 of the head 32.

Removably secured to the inner face of one of the arms, for example arm is, by a fastener or the like 56, is one end of a spring arm 52 having an angulated free end portion 54 that frictionally engages the opposing inner face of the arm l2.

In practical use, the arms l2 and M are placed between clamping jaws 56 and 53 of a vise designated generally by the numeral es, with the shouldered portions 38 and ii! of the jaws 25 and 32 frictionally engaging the upper ends 62 and 54 of the vise jaws 56 and 58. A piece of work 66 is placed between the jaws 26 and 32 so that the inclined bearing face 28 of jaw 2'6 frictionally engages one face of the work, and the bearing surface 68 of the roller it frictionally engages the opposite face of the work. By tightening the feed screw 68 of the vise, a selected adjustment or angle disposition of the work 66 relative to the vise may be maintained so that a file it may be used to round or file the work.

Reference is now directed to Figure 4 wherein there is disclosed a slightly modified form of work supporting roller. In this embodiment, there is provided a substantially V-shaped transverse groove or slot H in a flat bearing surface 12 of the roller '54, and a portion 15 and E8 of the surface 12 is knurled to provide a further gripping surface. This slot H will afford means whereby a rounded piece of Work may be conveniently gripped between the same and the bearing face 28 of jaw 26.

In view of the foregoing description taken in conjunction with the accompanying drawings it is believed that a clear understanding of the device will be quite apparent to those skilled in this art. A more detailed description is accordingly deemed unnecessary.

It is to be understood, however, that even though there is herein shown and described a preferred embodiment of the invention, the invention includes any changes coming within the scope of the appended claim.

Having described the invention, what is claimed as new is:

A work holding device comprising a first and second pair of arms, said arms having upper and lower end portions, the lower end portion of said arms being bifurcated, a connecting link received by the bifurcated lower end portions of said arms, means pivoting the ends of said link to the bifurcated end portions of said arms, said arms having inner flat surfaces, a spring arm secured to the inner surface of said first arm and having a portion bearing against the inner surface of said second arm to retain said arms spaced relative to each other, jaws fixed to the upper end portions of said arms, one of said jaws comprising a channel member having spaced leg portions, a pivot pin fixed to the leg portions of the channel member and disposed parallel to the pivotal axes of said arms, said roller having a, flat 4 longitudinal bearing surface, and a transverse groove provided in the flat longitudinal bearing surface of said roller for receiving a rounded piece of Work.

CARL M. SCHMI'IT.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 998,248 Jahn July 18, 1911 1,110,683 Goodwin Sept. 15, 1914 1,249,148 McClellan Dec. 4, 1917 2,197,310 Lincoln Apr. 16, 1940 FOREIGN PATENTS Number Country Date 530,193 France Sept. 26, 1921 281,050 Great Britain Dec. 21, 1927 

